Improvement in molding-machines



A. H. FRANK 81 G. SPIRE.

Molding-Machine.

Patented July 20,1875.

A c W i I/ffrzewm ".FETERS, FHQTO LITHOGRAPHER. WASH] NI'IED arenaFFICE.

ANDREW H. FRANK AND GEORGE SPIRE, OF BUFFALO, NEW YORK.

IMPROVEMENT IN MOLDING-MACHINES.

Specification forming part of Letters Patent No. 165,720, dated July 20,1875; application filed June 15, 1875.

To all whom it may concern Be it known that we, ANDREW H. FRANK andGEORGE SPIRE, both of Buffalo, in the county of Eric and State of NewYork, have invented a new and useful Improvement in lllolding-llachines,which improvement is fully set forth in the followi. g specification,reference being had to the accompanying drawings.

Our invention relates to that class of molding-machines which areprovided with two vertical spindles turning in adjustable bearings orframes, and carrying suitable cutters at their upper ends above the bedor table of the machine Previous to our invention these machines havebeen constructed with two supporting side frames, between which thespindles were arranged. This construction is objectionable, for thereason that the side frames cover or hide the spindle-bearings, and 'donot permit ready access thereto, whereby the operation of adjusting thespindles is rendered more or less diflicult, while it consumesconsiderable time. The object of our invention is to remedy this defect;and it consists of the particular construction of a supporting-frame, aswill be hereinafter fully described.

In the accompanying drawings, Figure 1 is a front elevation of ourimproved machine. Fig. 2 is a side elevation thereof. Fig. 3 is ahorizontal section in line 00 a, Fig. 1.

Like letters of reference refer to like parts in each of the figures.

A is the bed or table of the machine; B B. the two vertical spindlesormandrels, provided above the bed with cutters I). b,- O (J, theadjustable spindle frames, having bearings o c in which the spindlesrevolve; and d, the driving-pulleys, secured to the spindles. All ofthese parts are old and well known. E is the main part of thesupportingframe, consisting of a hollow column arranged centrally underthe bed A and between the spindles B B. The column E is formed at itsupper end with two horizontal arms, f f, supporting the bed A, andprovided near each end with vertical ways g, in which the upper end ofthe spindleframe 0 is adjustable. h h are two similar horizontal arms,formed with the column Eat a suitable distance below the arms f f tosupport the lower ends of the spindle-frames, I

which are guided in vertical ways g, formed with said arms. The foot ofthe coluinn E is enlarged, so as to form a firm and reliablebase-support. The column A is readily cast in one piece with the arms fand h and ways g g, forming a rigid and secure supportingframe for themachine, which can be produced at comparatively small expense. Thesupporting-column beingarranged between the spindles, the latter arefully exposed, so that free access can be had thereto when they arerequired to be adjusted, or for any other pur-

